There are companies who swap out a sensor in a DLSR for one that uses infrared light. Theoretically, you could get the same dramatic results as infrared film. Years ago I did this to my old, old Canon 5D Mk I. Got some interesting shots but it was pretty fussy. Didn't keep it up.
This kind of image tends to get very bright leaves. Clear skies turn almost black. I found that I could get a similar effect just using the color sliders in the black and white adjustment tool in Photoshop. The subject is my favorite autumn tree in Forest Park.
Road trip today. Theme song for our destination here.